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https://github.com/denoland/deno.git
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6e2df8c64f
This PR brings assertOps and assertResources sanitizers to Deno.test() API. assertOps checks that test doesn't leak async ops, ie. there are no unresolved promises originating from Deno APIs. Enabled by default, can be disabled using Deno.TestDefinition.disableOpSanitizer. assertResources checks that test doesn't leak resources, ie. all resources used in test are closed. For example; if a file is opened during a test case it must be explicitly closed before test case finishes. It's most useful for asynchronous generators. Enabled by default, can be disabled using Deno.TestDefinition.disableResourceSanitizer. We've used those sanitizers in internal runtime tests and it proved very useful in surfacing incorrect tests which resulted in interference between the tests. All tests have been sanitized. Closes #4208
61 lines
1.6 KiB
TypeScript
61 lines
1.6 KiB
TypeScript
const { test } = Deno;
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import { assertEquals, assertThrows } from "../testing/asserts.ts";
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import { delay } from "../util/async.ts";
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import { signal } from "./mod.ts";
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if (Deno.build.os !== "win") {
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test("signal() throws when called with empty signals", (): void => {
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assertThrows(
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() => {
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// @ts-ignore
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signal();
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},
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Error,
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"No signals are given. You need to specify at least one signal to create a signal stream."
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);
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});
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test({
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name: "signal() iterates for multiple signals",
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fn: async (): Promise<void> => {
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// This prevents the program from exiting.
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const t = setInterval(() => {}, 1000);
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let c = 0;
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const sig = signal(
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Deno.Signal.SIGUSR1,
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Deno.Signal.SIGUSR2,
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Deno.Signal.SIGINT
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);
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setTimeout(async () => {
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await delay(20);
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Deno.kill(Deno.pid, Deno.Signal.SIGINT);
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await delay(20);
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Deno.kill(Deno.pid, Deno.Signal.SIGUSR2);
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await delay(20);
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Deno.kill(Deno.pid, Deno.Signal.SIGUSR1);
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await delay(20);
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Deno.kill(Deno.pid, Deno.Signal.SIGUSR2);
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await delay(20);
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Deno.kill(Deno.pid, Deno.Signal.SIGUSR1);
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await delay(20);
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Deno.kill(Deno.pid, Deno.Signal.SIGINT);
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await delay(20);
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sig.dispose();
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});
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for await (const _ of sig) {
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c += 1;
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}
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assertEquals(c, 6);
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clearTimeout(t);
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// Clear timeout clears interval, but interval promise is not
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// yet resolved, delay to next turn of event loop otherwise,
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// we'll be leaking resources.
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await delay(10);
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}
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});
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}
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